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Finding the Fourth Proportional to 69,361, 104,068.86 and 36,060.20

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Solution

The fourth proportional to 69,361, 104,068.86 and 36,060.20 is: 54,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,361 : 104,068.86 = 36,060.20 : x
  2. Step 2: Convert to fraction form
    69,361/104,068.86 = 36,060.20/x
  3. Step 3: Cross multiply
    69,361x = 104,068.86 × 36,060.20
  4. Step 4: Simplify right side
    69,361x = 3,752,743,905.37
  5. Step 5: Solve for x
    x = 3,752,743,905.37/69,361
  6. Step 6: Final answer
    x = 54,104.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.